// Copyright (C) Kumo inc. and its affiliates.
// Author: Jeff.li lijippy@163.com
// All rights reserved.
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published
// by the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <https://www.gnu.org/licenses/>.
//


#pragma once

#include <pollux/vector/complex_vector.h>
#include <pollux/vector/vector_fuzzer.h>

namespace kumo::pollux::exec::test {

// Shuffle batches.
void shuffleBatches(std::vector<RowVectorPtr>& batches);

// Make batches with random data.
//
// NOTE: if 'batchSize' is 0, then 'numBatches' is ignored and the function
// returns a single empty batch.
std::vector<pollux::RowVectorPtr> makeBatches(
    int32_t batchSize,
    int32_t numBatches,
    const RowTypePtr& rowType,
    memory::MemoryPool* pool,
    double nullRatio = 0.1,
    bool shuffle = true);

std::vector<RowVectorPtr> makeBatches(
    vector_size_t numBatches,
    std::function<RowVectorPtr(int32_t)> makeVector,
    bool shuffle = true);

std::vector<RowVectorPtr> mergeBatches(
    std::vector<RowVectorPtr>&& lhs,
    std::vector<RowVectorPtr>&& rhs,
    bool shuffle = false);

std::vector<std::string> concat(
    const std::vector<std::string>& a,
    const std::vector<std::string>& b);

std::vector<RowVectorPtr> makeCopies(
    const std::vector<RowVectorPtr>& source,
    int32_t numCopies);

} // namespace kumo::pollux::exec::test
